Heyer, 32, was killed when a car rammed into a crowd of counter-protesters who were demonstrating against Saturday's Unite the Right rally.

"She was a sweet person and I just want to do my best to make sure her family doesn't have to worry about cost of anything. And you know I thank her. Because she wasn't just standing up for me she was standing up for my sons in there and you know all people of color," Heyer said Sunday, when her campaign had raised about $60,000.

By Monday morning, that amount would nearly quadruple.

"We were up to almost $25,000 after two hours," she said.

Correa and Heyer grew up together near Charlottesville, and Correa told reporters she felt compelled to help the family after hearing about her death.

The money will benefit Heyer's mother, Susan Bro, who told The Washington Post that her daughter died doing what she felt was right.

“I’m not really surprised my child died this way, because she would stand up for what she believed in,” Bro, 60, said. "Heather has always stood for fairness and equal treatment of everybody."

Heyer, a paralegal, was a native of Greene County.

Multiple videos of the crash surfaced after the incident, showing a gray Dodge Charger driving straight into a crowd. Bystanders could be seen running and screaming.

Nineteen were injured in the attack, including Heyer's friend, Marcus Martin.

The chilling moment Martin was hit by the vehicle was caught by a photographer.

"I hear tires screech, then I look up and I see people getting thrown in the air and the only thing I could do is push my fiancée out of the way," Martin said.

As Martin, whose leg was broken, prepares to undergo surgery, he says his heart goes out to Bro.

"Her mother can't talk to her daughter," he said. "She can't hug her. Her mother has to bury her daughter. Heather didn't deserve this. Heather died for standing in what she believed in."

James Alex Fields Jr, of Ohio, allegedly drove the vehicle into the counter-protesters, killing Heyer as she crossed the street.

Fields, who is being held at the Albemarle-Charlottesville Regional Jail, is now charged with second-degree murder, three counts of malicious wounding and one count of failing to stop,

Field's mother, Samantha Bloom, told The Associated Press Saturday night that she knew her son was attending a rally in Virginia but didn't know it was a white supremacist rally.

”I thought it had something to do with Trump," said Bloom. "Trump's not a white supremacist."

The federal government has opened a civil rights investigation into the horrific crash.

U.S. Attorney General Jeff Sessions issued a statement Saturday night.

"The Richmond FBI Field Office, the Civil Rights Division, and the U.S. Attorney’s Office for the Western District of Virginia have opened a civil rights investigation into the circumstances of the deadly vehicular incident that occurred earlier Saturday morning," Sessions said. “The FBI will collect all available facts and evidence, and as this is an ongoing investigation we are not able to comment further at this time.”